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This article was co-written by Cory Schifter. Cory Schifter is a jeweler, jewelry appraiser and owner of Casale Jewelers in Dongan Hills, Staten Island, New York. Casale Jewelers is known for its selection of exquisite jewelry, designer labels, engagement rings, diamonds, designer jewelry and watches. Cory has over 10 years of experience in the jewelry industry and is a jewelry appraiser. Cory once appeared on the show “Got it made in New York” on NY1 News about the design work of Casale Jewelers. Casale Jewelers is recognized by American Express and Facebook as one of the top five small businesses in the US.
There are 13 references cited in this article that you can view at the bottom of the page.
This article has been viewed 109,756 times.
You want to know if the stone in your hand is a real diamond – pinpointing this is a tricky issue. Many curious urbanites have become true experts through experience. Light, water, breath and a magnifying glass are all you need. See Step 1 for more details on the magical world of diamonds.
Steps
Check out Diamonds at the Store
- To make it easier you can put real diamonds next to them and breathe in both. You can see that the real diamond will always stay clear and the fake will fade and if you breathe continuously, a layer of fog will start to form. With each breath, the fakes are foggy more and more, while the real ones are always clear and sparkling.
- Zirconium stones (the kind that will usually pass most tests) usually do not have these imperfections because they are made in a carefully researched environment, not born through survival chances in the wild. “Earth’s crust”. A stone that is too perfect is often not natural.
- However, a real diamond is also capable of being perfectly beautiful. Don’t use imperfections as a yardstick to determine if your diamond is real or not. That’s just one of the factors.
- Note that synthetic diamonds will not have imperfections because they are produced in a carefully controlled environment. Laboratory-produced diamonds are chemically, physically, and optically identical (sometimes even superior) to diamonds mined from the natural environment. This causes considerable concern in the mining diamond business as they do not want to invest large sums of money to get a diamond that is unlikely to be “natural”. Synthetic diamonds are also “real”, but not “natural”.
Regular Diamond Test
- Newspaper word test: Place the stone face down on a piece of newspaper. If you can read text through the stone, or even just see black smudges, it’s not a diamond. A diamond bends light so strongly that you can’t see anything. (There are exceptions, however: in real diamonds, if the cut is not symmetrical, it can still be seen through.)
- Dot test: Draw a small dot on a piece of white paper and place the stone in the center of the dot and observe. If you see a circle reflected in the stone, it is not a diamond. You won’t be able to see that dot through a real diamond.
- Plus check out the sparkle. Real diamonds will sparkle much more brilliantly than glass or quartz of the same size. You may want to bring a piece of glass or quartz with you for reference.
- Don’t confuse sparkle with reflection. Sparkle is about luminosity or how much light is refracted by the facet of the stone. Reflection is about the color of light that the stone refracts. So look for “bright” light, not colorful light.
- There is one stone that sparkles more than a diamond: moisanite, or diamond moissanite. This gemstone resembles a diamond so much that it takes experts a long time to distinguish. To sort without special tools, hold the stone close to your eyes. Shine the fountain pen’s flashlight through the stone. If you see a rainbow glow, it’s a sign of double reflection. This is a property of moissanite that diamonds do not have.
Professional Test
- Thermal testing works on the same principle as the “break the rock” yourself above. Instead of having to manually measure whether the stone would break under the pressure of rapid expansion, the probe actively measures how long the diamond retains heat.
- If you want to have your diamond inspected in a more professional way, find a local jeweler.
- A traditional heat test does not tell the difference between moissanite and diamond. Make sure that the tests are conducted using a “thermal conductivity” meter, not a “temperature” meter.
- If you are testing diamonds in bulk at home, you may want to consider purchasing a variety of gem testing machines that are sold online or at specialty diamond stores.
- To get the best view of the diamond, use an electron microscope at 1200x magnification.
- To do this test properly you need a real diamond with the exact same shape and size as the stone of interest. If there’s nothing to compare, you’ll have a hard time identifying.
- While the UV test can help narrow down your choices among possibilities, it’s best to avoid relying on test results to confirm with certainty that the diamond is genuine. fake. As we said above, some diamonds fluoresce under UV light, some don’t. The rhinestones are also mixed in such a way that they shine brightly under ultraviolet light. So nothing is certain. [6] X Research Sources
- If you want to have your diamond X-rayed, you’ll need to take it to a professional diamond testing lab, or negotiate with your local radiology center.
Distinguishing Natural Diamonds from Other Stones
- Diamond and moissanite have very similar thermal conductivity. If you only use a diamond tester, it will give a “diamond” result while your stone is moissanite. The best option for professional jewelers is to combine both the diamond tester and the moissanite for the best results.
- When light is focused on, zirconium will radiate a colorful spectrum, while real diamonds sparkle and reflect colorless light. [9] X Research Source
- Another popular way to test diamonds is by rubbing the stone and glass together. Many people believe that if a stone scratches glass without any damage, it is a diamond. However, high-quality zirconia “also” can scratch glass, so this test is not accurate. [10] X Research Source
Prove a Diamond is Real
- Gemstone evaluation has two basic steps: first identifying and evaluating the stone in question, then assigning a value. When looking at an independent appraiser, it would be ideal to choose according to the following criteria: have a university degree, graduate from the National Gemological Institute, and have a degree awarded by a non-participating Director directly into the diamond trade. [11] X Research Sources This way you can be assured that the appraiser is qualified.
- When giving someone a diamond appraisal, make sure that person is trustworthy. However, you should ask the jeweler to inspect the diamond right in front of you instead of taking it elsewhere.
- whether the stone is natural or man-made (Note: a synthetic diamond is still a diamond, just not “natural.” See the section on testing synthetic diamonds for details).
- Has the stone changed color?
- whether the stone has received long-term or temporary heat treatment.
- how the stone matches the rating document provided by the retailer.
- The best way to appraise a diamond is to ask an organization like the Gemological Institute of America (GIA). If they have a branch where you live, you can either bring the diamonds to them in person, or have the jeweler remove the diamond and send it to GIA.
- The certificate includes a lot of information about your diamond, such as carat weight, measurement, scale, level of transparency, degree of color, cut.
- Certificates may contain information that you do not expect. Such as:
- Fluorescence , or the ability of a diamond to give off a faint light when exposed to ultraviolet light. [13] X Research Source
- Gloss , or smoothness of the surface.
- Symmetry , or the extent to which opposing aspects mirror each other perfectly.
- Just like people, every diamond is unique. New technology allows gemologists to quantify that uniqueness by producing a “fingerprint” of the gem’s owner. Subscription costs are typically less than $2 and a half, including insurance benefits. If a diamond with your fingerprint is stolen, it will show up on an international database, you will be able to get it back by showing proof of ownership. [14] X Research Source
Advice
- Real or fake, just enjoy the beauty of jewelry. When you wear a stone, it doesn’t matter whether it’s real or fake. If going to an expert is sometimes confused, relax. It is only when you are dealing with gems that it becomes important to know where it comes from, underground or in a laboratory.
- Consider an independent assessment of the stone if you want to be sure. If you bring the stone to an independent assessment in the US, it will likely cost you between $35-$75. Make sure you never take your eyes off the stone — otherwise it could be swapped. [15] X Research Source
Warning
- It is impossible to be 100% sure a diamond is real unless it comes with a certificate from a reputable and authoritative gem-grader. If you choose to buy a mortgage, which is for sale on the black market or online, you are taking a lot of risk.
- Don’t try or prove a diamond is real by rubbing it with another stone. If it’s a real diamond, it won’t scratch – but you could chip or crack. Despite its very high hardness, diamond is still brittle and can chip. [16] X Research Source You can use sandpaper to distinguish real or fake diamonds, but that’s still not the most complete test. [17] X Source of Research If it’s not a real diamond, the stone can still pass the tests by friction, as many gemstones have a high degree of hardness – or fake if it doesn’t pass the test. futile and regrettable if you damage a stone that looks like a diamond.
This article was co-written by Cory Schifter. Cory Schifter is a jeweler, jewelry appraiser and owner of Casale Jewelers in Dongan Hills, Staten Island, New York. Casale Jewelers is known for its selection of exquisite jewelry, designer labels, engagement rings, diamonds, designer jewelry and watches. Cory has over 10 years of experience in the jewelry industry and is a jewelry appraiser. Cory once appeared on the show “Got it made in New York” on NY1 News about the design work of Casale Jewelers. Casale Jewelers is recognized by American Express and Facebook as one of the top five small businesses in the US.
There are 13 references cited in this article that you can view at the bottom of the page.
This article has been viewed 109,756 times.
You want to know if the stone in your hand is a real diamond – pinpointing this is a tricky issue. Many curious urbanites have become true experts through experience. Light, water, breath and a magnifying glass are all you need. See Step 1 for more details on the magical world of diamonds.
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